Olc
abbr. on-line computer 联机计算机，在线电脑
🗣️ 情景例句
The subject is unfamiliar to me.
那个问题我不熟悉。
I've brought a wonderful book you might like.
我带起来了你可能喜欢的好书。
How long have you been learning English?
你学英语有多久了？